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Scriptural Evidence for the Trinity

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Dr. Derek Carlsen

All we are trying to do here is lay out what God has revealed about Himself in Scripture and it is because of this revelation that the true church has always defended the doctrine of God’s Threeness (Tri-Unity). This information has been placed under seven headings showing:

  1. that God is One (a unity) and that there is only one true God.
  2. that there is a plurality in the Godhead.
  3. that this plurality consists of three distinct Persons.
  4. that the distinct Person of the Father is truly God.
  5. that the distinct Person of the Son is truly God.
  6. that the distinct Person of the Holy Spirit is truly God.
  7. further evidence for the personality of the Holy Spirit, since some people deny His personality.

This is merely an appendix and so for a more in-depth discussion about the Trinity and the relevance of this doctrine for our daily living I refer you to the article, The Trinity and Daily Living.

God is One

The Bible is very clear that there is only One God: “Hear, O Israel: The Lord our God, the Lord is one!” (Deut.6:4). “Thus says the Lord, the King of Israel, And his Redeemer, the Lord of hosts: ‘I am the First and I am the Last; Besides Me there is no God…Do not fear, nor be afraid; Have I not told you from that time, and declared it? You are My witnesses. Is there a God besides Me? Indeed there is no other Rock; I know not one” (Isa.44:6,8). “I am the Lord, and there is no other; There is no God besides Me. I will gird you, though you have not known Me, That they may know from the rising of the sun to its setting That there is none besides Me. I am the Lord, and there is no other…Tell and bring forth your case; Yes, let them take counsel together. Who has declared this from ancient time? Who has told it from that time? Have not I, the Lord? And there is no other God besides Me, A just God and a Savior; There is none besides Me. Look to Me, and be saved, All you ends of the earth! For I am God, and there is no other” (Isaiah 45:6,6,21,22). “that all the peoples of the earth may know that the Lord is God; there is no other” (1 Kings 8:60). “Jesus answered him, ‘The first of all the commandments is: Hear, O Israel, the Lord our God, the Lord is one’…So the scribe said to Him, ‘Well said, Teacher. You have spoken the truth, for there is one God, and there is no other but He’ (Mark 12:29,32). “Therefore concerning the eating of things offered to idols, we know that an idol is nothing in the world, and that there is no other God but one” (1 Cor.8:4). “For there is one God and one Mediator between God and men, the Man Christ Jesus” (1 Tim.2:5; see too, Jn.17:3; 1 Cor.8:6; Gal.3:20; Eph.4:5,6; James 2:19; Jude 4).

Plurality in the Godhead

While the essence of God is one and cannot be separated or split up in any way whatsoever, the Scriptures show that we can distinguish between more than one Person within the Godhead. From the opening page of the Bible we are made aware that God exists as more than one Person. In Gen.1:26 God says, “Let us make man in our image, after our likeness”. Many people try to avoid the plain meaning of this verse by giving different explanations as to why God used the plural here. One of these arguments is that God was speaking to the angels, but man was not made in the image of angels and angels were not involved in creating man. We do not have a full revelation of the Trinity in Gen.1:26, however, to see this as a glimpse that there is a plurality of Persons in the One God, gives the only satisfactory solution for the use of the plural in this verse. The doctrine of the Trinity is at the heart of Christianity and thus we should not think it strange that God reveals Himself in this way from the very beginning—this is who He is! Though we do not find a full revelation of the Triune God in the Old Testament (OT), we do find a number of indications of this doctrine there. As redemptive history unfolded and the Word became flesh (John 1:14) and the Holy Spirit came in abundant measure (Acts 2) to equip the church, so, the revelation of the Triune God become clearer.

This Plurality is Shown to Be Three Distinct Persons

John Calvin said, “While [God] proclaims his unity, he distinctly sets it before us as existing in three persons” (Institutes 1:13:2).

Thus we have seen that the Scriptures show that there is a clear distinction between the Persons within the Godhead:

“In the beginning was the Word, and the Word was with God, and the Word was God. He was in the beginning with God” (Jn.1:1-2).

“My little children, these things I write to you, so that you may not sin. And if anyone sins, we have an Advocate with the Father, Jesus Christ the righteous” (1 Jn.2:1).

“For this reason I bow my knees to the Father of our Lord Jesus Christ” (Eph.3:14).

And we have also seen that there are three distinct Persons within the Godhead and that each Person possesses the entire and absolute essence of God. This means it is heretical to suggest that God consists of only one Person who manifests Himself in three different ways or modes, i.e., as Father, Son and Holy Spirit. A frequent OT phrase is, “The Name of the Lord” and Jesus’ disciples would have been very familiar with this. Jesus explained the full meaning of this term in Matthew 28:19 when He told His disciples that believers are to be baptized into the name of the Father and the Son and the Holy Spirit. We see that the Father is not the Son or the Spirit and the Son is not the Father or the Spirit and the Spirit is not the Father or the Son, yet we are to be baptized into only one name. Jesus does not use the plural ‘names’, but the singular ‘name’ thus preserving the unity of God, while at the same time showing that the term ‘Lord’ includes Father, Son and Holy Spirit—the Trinity of Persons. The Father, Son and Holy Spirit are also named together in the following verses:

“When all the people were baptized, it came to pass that Jesus also was baptized; and while He prayed, the heaven was opened. And the Holy Spirit descended in bodily form like a dove upon Him, and a voice came from heaven which said, ‘You are My beloved Son; in You I am well pleased’” (Lk.3:21-22).

“There are diversities of gifts, but the same Spirit. There are differences of ministries, but the same Lord. And there are diversities of activities, but it is the same God who works all in all” (1 Cor.12:4-6).

“The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Spirit be with you all. Amen” (2 Cor.13:14).

“elect according to the foreknowledge of God the Father, in sanctification of the Spirit, for obedience and sprinkling of the blood of Jesus Christ: Grace to you and peace be multiplied” (1 Pet.1:2).

“But you, beloved, building yourselves up on your most holy faith, praying in the Holy Spirit, keep yourselves in the love of God, looking for the mercy of our Lord Jesus Christ unto eternal life” (Jude 20-21).

The Father is God

The Son is God

The Holy Spirit is God

The Holy Spirit is a Person

The Holy Spirit is not some impersonal force, power or influence for Scripture clearly shows that He has a real personality. The Spirit teaches, gives instruction, brings things to remembrance, convicts, guides, testifies about and glorifies Christ, speaks, hears, shows, leads, is grieved, can be blasphemed against, tempted and resisted by people (Lk.12:12; Acts 8:29; Jn.14:26; 16:8,13,14; Rom.8:14; Eph.4:30; Matt.12:31; Acts 5:9; 7:51; Isa.63:10).

The Spirit is not merely the impersonal power or force of God and is distinguished from this power, whether His own or the Father’s. “And the angel answered and said to her, ‘The Holy Spirit will come upon you, and the power of the Highest will overshadow you; therefore, also, that Holy One who is to be born will be called the Son of God’” (Lk.1:35). Moreover, if the Spirit was just the power of God, then it is meaningless to say, “Jesus returned in the power of the power.” “Then Jesus returned in the power of the Spirit to Galilee, and news of Him went out through all the surrounding region” (Lk.4:14; see too, Acts 10:38; Rom.15:13; 1 Cor.2:4). If the Spirit is merely the “force” of God (the energy God uses to accomplish His will), then how could Paul talk about “the love of the Spirit” (Rom.15:30)? And how could the apostles have said, “It seemed good to the Holy Spirit and to us…” (Acts 15:28), or that the “Spirit said…” (Acts 13:2)? The Scriptures tell us that no one directs or instructs the Spirit (Isa.40:13), but a “power” or “force” needs to be directed. “Who has directed the Spirit of the Lord, Or as His counselor has taught Him?” (Isa.40:13).